baber/WOPTO huggingface dataset:
Patent GB-600827-A (GB)
Title: Improvements in substituted quinolines and methods of preparing them
IPC: C07D295/03
Filed: 1945-03-01
Abstract: 6 - Substituted - 4 - [o 1 - (N - piperidino) alkylamino quinolines of the general formula <FORM:0600827/IV(b)/1> where R represents hydrogen, the methyl or ethyl groups, R1 represents hydrogen or the methyl group, not more than two R1 substituents being methyl, and n is 2 or 3, are prepared by condensing 6-methoxy- or 6-ethoxy - 4 - chloro quinoline with o 1 - (N - piperidino) alkylamines of the general formula <FORM:0600827/IV(b)/2> where R, R1 and n have the above significance.  The base may be converted to a salt by the addition of acid, or where R is a methyl or ethyl group, it may be dealkylated by heating with a dealkylating agent, e.g. hydrobromic acid, and neutralizing to p  liberate the base which may then be converted to a salt by the addition of acid.  In examples: (1) 6-methoxy-4-chloroquinoline, 3-(N-piperidino) propylamine and cymene are heated, hydrochloric acid added and the aqueous layer made strongly alkaline with sodium hydroxide to liberate 6-methoxy-4-[31 - (N - piperidino) - propylamino] - quinoline which is either converted to the dihydrochloride by treatment with hydrochloric acid gas or dealkylated by heating with hydrobromic acid and neutralized to liberate 6-hydroxy-4-[31-(N-piperidino)-propylamino]-quinoline which may be similarly converted to the dihydrochloride; (2 to 7) similarly, the following 4-substituted 6-hydroxy, methoxy or ethoxy quinolines are prepared and are converted into the di-salts as hydrochlorides, hydrobromides, sulphates, nitrates, phosphates, lactates or propionates, namely the 4-substituted 31-(N-a -pipecolino)-propylamino-, 21 - (N - piperidino) - ethylamino-, 21-(N-a -pipecolino) - ethylamino-, 21 - (N - b  - pipecolino) - ethylamino-, 31 - (N - b  - pipecolino) - propylamino-, 21 - (N-g -pipecolino)-ethylamino-, 31 - (N-g -pipecolino) - propylamino-, 21 - (N - a , b  - lupetidino) - ethylamino-, 31 - (N - a ,b  - lupetidino) propylamino)-, 21 - (N - a ,g  - lupetidino) - ethylamino-, 31 - (N - a ,g  - lupetidino) propyl - amino-, 21-(N-a ,a 1-lupetidino) ethylamino- and 31-(N-a ,a 1-lupetidino) propylamino-derivatives of 6-hydroxy, methoxy or ethoxy quinoline.
Patent GB-123858-A (GB)
Title: Improvements in Children's Toy Books.
Inventor: VALENTINE HARBEN JAMES
IPC: A63H33/22
Filed: 1918-03-25
Abstract: 123,858. Valentine, H. J. March 25, 1918. Word-building strips and apparatus.-The covers of children's toy-books are provided with grooves or recesses to retain and expose strips or pieces bearing alphabetical characters, figures, &c. which can be manipulated to form different combinations. As shown in Figs. 1 and 3, the cover may be made from two pieces of material 2, 3, the upper piece having slots 4 along which the pieces 7 can be slid. Connecting-slots 8 allow pieces to be moved from one slot to another, and bypasses 9 permit pieces to be shunted. Pieces 13 of stud-like formation, as shown in Fig. 5, may be employed with a cover consisting of a single sheet of material having slots cut through it. In the modified construction shown in Fig 6, the letters &c. are placed on sliding strips 16 which can be manipulated to expose particular letters behind the apertures 15 and so form words.
Patent GB-397512-A (GB)
Title: Improvements in fluid-pressure servomotors for controlling internal combustion engines and other purposes
IPC: G05D13/00
Filed: 1932-02-22
Abstract: 397,512. Starting. SAVAGE, L. G., Royal Aircraft Establishment, South Farnborough, Hampshire. Feb. 22, 1932, No. 5222. [Class 7 (v).] A servomotor 1 is provided with self-locking apparatus which holds a piston-rod at the end of its stroke in either direction in the cylinder. The motor is controlled by a hand-operated, balanced, distributing piston-valve, and may be connected to the decompressor gear and fuel valves of compression-ignition engines, as shown in the Figure, wherein the rod 11 is coupled to a quadrant 38 on the cylinder decompressor-valve lever 39, and a quadrant 40 on the fuel injection valve lever 41 is operated thereby. In multiple - cylinder engines, the levers are coupled by link rods.
Patent GB-854419-A (GB)
Title: Method for the production of ª‰-carotene and other closely related carotenes
IPC: C12P23/00
Filed: 1958-02-18
Abstract: b -Carotene and other closely related carotenes are obtained with the aid of micro-organisms of the order Mucorales in a process characterised in that opposite mating types of the same or entirely different genera are grown simultaneously in a liquid medium which contains a source of assimilable carbon, a source of assimilable nitrogen, a source of thiamine and mineral substances and further a stimulating substance or substances comprising b -ionone and/or an assimilable lipid and/or a surface -active agent, and that the cultures are incubated under submerged aerobic conditions at a temperature varying between 20 and 35 DEG  C. the initial pH of the fermentation being in the range of 5,0 to 7,0, preferably between 5,5 and 7,0.  Suitable organisms are those of the genera Mucor, Blakeslea, Choanephora, Phycomyces and Parasitella, such as Mucor hiemalis, Blakeslea trispora, Blakeslea circinans, Choanephora conjuncta, Choanephora cucurbitarum, Phycomyces blakesleanus, Pilaira anomala and Parasitella simplex.  Carbohydrates can be used in the form of glucose, sucrose or other sugar, or in the form of unpurified carbohydrates e.g. potatoes, cane and beet molasses and starch. Sources of assimilable nitrogen may take the form of soybean meal, corn steep liquor, fermentation residues, grain by-products, urea, nitrates, ammonium salts, asparigine, corn, wheat or soybeans. Other stimulating substances comprise B-ionone, and soybean oil, cotton seed oil, peanutoil, lard oil, alkyl aryl polyether alcohols and compounds of fatty acids and sorbitol.  In the examples experiments are effected to indicate the optimum conditions for the production of b -carotene.  Hence various nutrients and microorganisms are employed therein.
Patent GB-199353-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C2/46
Filed: 1923-02-22
Abstract: 199,353. Hvid, R. M. June 19, 1922, [Convention date]. Boxes; glands.-The shaft of a rotary pump is packed by stuffing-boxes, the glands 35 of which are each formed with a recess to receive a ball bearing 37. The gland heads 36 are located in split bosses 39 formed on the side covers of the pump, and provided with screws 40 for tightening whereby the gland heads 36 are clamped in position.
Patent GB-415388-A (GB)
Title: An improved feeler arrangement for automatic weft-replenishing mechanism in looms
IPC: D03D51/34
Filed: 1933-02-21
Abstract: 415,388. Weft - feeler arrangements for looms. HOLLINS & CO., Ltd., W., Castle Boulevard, Nottingham, and MARTIN, G. F. N., 40, Garthland Drive, Dennistoun, Glasgow. Feb. 21, 1933, No. 5286. [Class 142 (iii).] Feelers 5, 6 adjustably mounted on spring- pressed plungers 7, 8 are adapted to engage the weft b<1> and the weftcarrier b. In the form shown, the plunger 8 is normally projected against a stop 8<1> further than the plunger 7. When the weft is nearly exhausted, a collar 12 on the plunger 8 moves beneath a cam-surface on an arm 11 on the plunger 7 which is thereby turned so that an arm 13 carried thereby depresses a lever J<2> to effect weft replenishment on the next pick of the shuttle. In a modification, the plungers are normally projected with the collar 12 lying beneath the arm 11. When the weft is nearly exhausted, there is no relative movement between the feelers, and the arm 13 remains in the operative position to effect weftreplenishment.
Patent GB-719570-A (GB)
Title: Improvements in or relating to cashew nut oil resins
Inventor: NEMIR CLARENCE TENALL
IPC: C08G16/02
Filed: 1952-02-28
Abstract: In making a resinous composition having a cashew nut shell filler, the oil contained in cashew nut shells is resinified in situ by (1) condensation by heating with an aldehyde in the presence or absence of a catalyst, (2) by polymerization by heating in the presence of a polymerization catalyst, an oxidizing agent, a halogenating agent, a sulphurizing agent or any combination thereof, or by both (1) and (2).  The condensation may be effected by heating at 80 DEG  to 400 DEG C. with or without solvents, e.g. water, and with or without catalysts, e.g. 50 per cent. hydrochloric and sulphuric acids, caustic soda and ammonia.  The polymerization may be effected by heating with nitric acid or in the presence of air, preferably in the presence of a solvent or suspending medium, e.g. water.  Other oxidizing agents specified are manganese dioxide, potassium dichromate, manganese and lead resinates, and organic peroxides, e.g. benzoyl and acetyl peroxides, in combination with air, sulphur, nitric acid or chlorine.  Also specified are other polymerization catalysts conc. sulphuric acid, zinc chloride, aluminium chloride, boron trifluoride, phosphorus oxychloride and diethylsulphate; aldehydes-formaldehyde, acetaldehyde, glyoxal, benzaldehyde and furfuraldehyde; other solvents or suspending media-ethanol, glycerine, glycol and carbitol.  In examples, cashew-nut shells are (1) condensed with formalin and the product is washed, dried and ground into a moulding powder, (2) heated with conc. sulphuric acid, (3) heated with manganese dioxide, (4) heated with nitric acid, (5) heated with sulphur with or without mercapto benzothiazol and with or without rubber compounding ingredients such as carbon black and zinc oxide and (6) heated with chlorine. In modifications, the cashew nut shell may first be blended with resin forming reagents or polymerizable compounds, such as other phenols, styrene, methyl methacrylate, polyvinyl-chloride, -acetate and-butyl acetal, acetonitrile, mixtures of hexamethylene diamine and adipic acid, butadiene, chloroprene, natural rubber latex or synthetic latices. drying oils such as linseed and tung oils, rosin and other natural and synthetic resins and resin forming components.  The products may be used as moulding powders, blended with other resins and colouring materials, or used as fillers for rubber products.
Patent GB-1007500-A (GB)
Title: Electrical contact with increased reliability
IPC: H05B33/26
Filed: 1963-02-08
Abstract: <PICT:1007500/C4-C5/1> In an encapsulated electroluminescent device having two electrode layers 1 and 7 and an intermediate light-emitting layer 5, the contact between electrode 1 and a lead-in stud 17, and between electrode 7 and one end 24 of a spring clip 15 which extends round the device for connection to a second stud 20, is made more reliable by interposing between the several contact surfaces fluid layers 26, 27, 28 of an electrically conductive material dispersed in an uncatalysed polymer compatible with and generally of the same kind as the encapsulating plastic 19 in order to prevent the latter from creeping between the contact surfaces. The clip 15 is isolated from the base electrode 1 by an insulator 22 which carries a printed conductor 21 connecting end 23 of spring 15 to the stud 20. The device is constructed in layers upon the electrode 1, formed of a metal plate or metal foil for conductive glass, which is next coated if necessary with low-melting ceramic to provide a bonding surface for the light-emitting layer 5, formed for example of a copper-activated zinc sulphide phosphor suspended in a glass frit, the layer 5 being in turn coated with lighttransmitting electrode 7 which may be applied by spraying on a solution of compounds of metals such as tin, antimony or indium. The various layers of the device are then protected by an insulating layer 9 which has a cavity for the connection to electrode 7.  The conductive part of the fluid layers is composed of finely divided materials such as acetylene black, aluminum, gold, silver, platinum, copper, iron or nickel, and for the encapsulating plastic may be used thermosetting resins such as allyl casting resins, phenolic casting resins, epoxy resins, glyceryl phthalate casting resins or polyester casting resins, or more opaque thermosetting resins such as diallyl phthalate moulding resins, epoxy moulding resins, furan moulding resins, melamine formaldehyde moulding resins, polyester moulding resins, polyacrylate moulding resins or ureaformaldehyde resins, or relatively transparent thermoplastic resins such as methylmethacrylate, cellulose nitrate ethylcellulose acetate, cellulose propionate, cellulose acetate butyrate or polychlorotrifluoroethylene. Alternatively vinyl-allyl, vinyl-butyral and vinyl-chloride moulding resins may be used. Specification 773,997 is referred to.
Patent GB-183165-A (GB)
Title: Improvements in and relating to the insulation of armature windings of electric machines
IPC: H02K3/32
Filed: 1921-02-16
Abstract: 183,165. Cullin, J. F. Feb. 16, 1921. Insulation.-In armatures for dynamo-electric machines in which the winding is in the form of copper bars bent upon themselves midway of their lengths and adapted to fit into slots in the armature core, a strip 16, Fig. 7 of insulating material such as indurated fibre or rubberized duck is woven in and out between adjacent inner ends 10, Fig. 8 of the sections of the winding. A strip of similar material to the strip 16 is wound round all the portions 12 of the winding at the commutator end of the armature. A strip of insulating material is also wound round the outside of the inner ends 10 of the winding. In each slot the two superposed bars are insulated from each other by a narrow strip of insulating material formed by twisting paper into a cord or tube. The core at one end of the armature and the spacing collar at the other end are wound with insulating-material to insulate them from the winding.
Patent GB-124074-A (GB)
Title: Improved Appliance for Sweeping Surfaces and Gathering Fragments therefrom.
Inventor: PHILLIPS EDWIN BURBRIDGE
IPC: A47L11/33
Filed: 1918-03-27
Abstract: 124,074. Phillips, E. B. March 27, 1918. Carpet and like sweepers.-An appliance for sweeping surfaces and gathering fragments therefrom, which may be used as a crumb scoop or for cleaning carpets, comprises a brush carried coaxially with the supporting wheels A and rotated backwards so as to sweep the fragments &c. into a following receptacle Q. The wheels A are each secured to a spindle B passing through a sleeve C carrying a pinion F and a pawl carrier G of a one-way drive H. An annular wheel K having internal teeth is secured to one of the wheels A which drives through gearing the pinion F connected by the sleeve C and the elements G, H to the brush. Fig. 2 shows a form of the sweeper for use as a crumb scoop which is provided with a central handle R for moving the scoop over the surface to be cleaned and a hinged lid q for the receptacle. The bristles or other sweeping elements are secured to a plurality of strips P carried by a pair of spiders N.
Patent GB-1421322-A (GB)
Title: Electrical signal modulator
IPC: G01R29/027
Filed: 1972-12-21
Abstract: 1421322 Pulse modulation circuits; multiplex pulse signalling TECHNICAL MANAGEMENT SERVICES Inc 21 Dec 1972 [21 Dec 1972] 5431/75 Heading H4L A pulse-width modulator comprises a source for producing an output signal alternating between two levels and including a differential amplifier 12 having a first input terminal coupled via an impedance 26 to a terminal X, a switching arrangement 22, 24 for connecting a second input terminal alternately-between the terminal X and a reference potential terminal, an arrangement 42, 44 for changing at least one of the levels in response to a modulating signal Z, an integrator 46 and a level detector 56 for producing an output signal change whenever the integrator output reaches either of two predetermined levels, the detector output being applied as switching signals to switches 22, 24. The switching frequency is chosen to be high so that the input at X approximates a D.C. voltage and the sampled output is added with a modulating signal at 2. The closed loop arrangement of the differential amplifier 12, integrator 46 and level detector 56 is free-running and provides the switching signals to the FET switch devices. The switching signals may also be applied to control the operation of a following pulse height modulator 86 having a modulation input y for varying the pulse amplitude. The output of the modulator 86 may be fed back to vary the operating levels of the level detector 56. The pulse width modulator 84 also functions as a pulse frequency modulator. The combined arrangement of modulators 84, 86 forms a multiplier or divider in dependence of which one of the three input signals x, z and y is maintained constant.
Patent GB-1039775-A (GB)
Title: Improvements in or relating to circuit arrangements for generating synchronous pulses
IPC: H01J17/04
Filed: 1964-02-10
Abstract: 1,039,775. Converting. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 10, 1964 [Feb. 13, 1963], No. 5464/64. Heading H2F. A circuit for deriving constant amplitude pulses from an A.C. supply comprises cold cathode tube 2 in series with a resistor 4 supplied with half-wave rectified current through a diode 6 from A.C. terminals 1, the trigger electrode of the tube being connected to a variable potentiometer 11, 12, 13 across the tube, and a capacitor 14 also being disposed across the tube. In operation, at the instant in the positive half-cycle when the trigger electrode reaches its firing value as set by the resistor 12, the tube fires and capacitor 14 discharges through it producing a pulse across the load resistor 4. A constant voltage D.C. output is obtained through the additional rectifier 7 and smoothing circuit 15, 16 at terminal 17. A keep-alive electrode is energized through capacitor/diode circuit 8, 9.
Patent GB-651282-A (GB)
Title: Improvements in or relating to a process for making ammonium sulfate
IPC: C01C1/242
Filed: 1948-02-24
Abstract: <PICT:0651282/III/1> Ammonium sulphate is prepared by flowing an ammonia-containing gas along the surface of a body of dilute sulphuric acid at a rate above the critical velocity and continuously bringing liquor to the surface of the said body at a rate sufficient to bring at least 16.5 gallons of liquor to within 4 inches of the surface contacted by the gas per pound of ammonia brought into contact with said body.  Preferably the rate of gas flow is 25-250 feet per second and it is constrained to flow along the surface of the liquid for at least six inches.  As shown (Fig. 1), ammonia-containing gas is introduced into a saturator through a port 20, flows from the circumference of the saturator to the centre over the surface of aqueous sulphuric acid through a plurality of radial channels 39 for the required distance, as determined by the distance an annular shelf 36 projects inwardly from a cracker pipe 30 and leaves through a port 22; whilst the sulphuric acid is pumped in through an inlet 52, flows upwardly through the crystals in the bottom 10 of the saturator and inwardly along the channels 39 for a distance determined by an annular shelf 44, and leaves through a suction head 42 and pipe 50 which communicates with the pump (not shown).  An overflow 24 regulates the height of the liquid. Specification 615,641 is referred to.
Patent GB-1291172-A (GB)
Title: Straps
Inventor: STEER PETER LESLIE
IPC: F16L3/233
Filed: 1970-02-05
Abstract: 1291172 Clamps PETER STEER DEVELOPMENTS Ltd 19 April 1971 [5 Feb 1970] 5483/70 Heading E2B A plastics bundling strap has ratchet teeth 2 held by an integral pawl 3 in the fastening position against a ramp 5, Fig. 2. The strap may have a longer untoothed portion between the teeth and the head 1 for holding a label holder, Fig. 5, the strap passing through holes 16, 17.
Patent GB-164435-A (GB)
Title: Improvements in, or relating to, wind screens
IPC: B60S1/02
Filed: 1920-02-24
Abstract: 164,435. Stubbs, E., and Stubbs, E. C. Feb. 24, 1920. Look-out shelters and wind-shields.-In order to remove snow or prevent condensation of moisture on a wind-screen or look-out for vehicles, ships, or air-craft, the screen A provided on one surface with a second transparent sheet of material B and the space between the two sheets is heated by means of electric ccnductors f, f<1>, f<2> arranged across and preferably between the two sheets A, B. In the arrangement shown, the wires are arranged in groups of three wires in parallel, the groups being connected in series between the terminals E, E<1>. A rubber packing strip D at the edge of the sheet B prevents access of moisture to the space between the sheets.
Patent GB-215869-A (GB)
Title: An improved safety clip for securing babies' napkins and the like
IPC: A44B99/00
Filed: 1923-02-27
Abstract: 215,869. White, C. S. Feb. 27, 1923. Clips, flexible-jaw. -A clip for securing babies' napkins comprises a piece of sheet metal doubled over to form two jaws A, B adapted to be closed by a twoarmed lever E, D journaled in lugs extending from the jaw B. This jaw has a T-head G which fits within a slot or eve F in the lower jaw when the jaws are closed the slot F being of larger dimensions than the head G in all directions. The jaws of the clip when closed are relatively widely separated from one another except adjacent the gripping ends to enable the clip to be used with fabrics of variable thickness. The clip is sewn through holes b in the jaw B to a piece H of stiff fabricfor attachment purposes.
Patent GB-456224-A (GB)
Title: Starting device for boosters, particularly those of locomotives
IPC: B61C15/02
Filed: 1936-02-25
Abstract: 456,224. Operating clutches. SKODA WORKS, PLZEN, 37, Jungmannova, Prague. Feb. 25, 1936, No. 5680. Convention date, March 5, 1935. Addition to 310,014, [Class 80 (ii)]. [Class 80 (ii)] [See also Group XXXI] A combined friction clutch 3 and dog clutch 4 for a booster engine of a locomotive as claimed in the parent Specification is controlled by fluid - pressure means comprising a slide valve 8 which connects the operating cylinders 1, 6 of the friction and dog clutches respectively to the fluid pressure supply or to atmosphere, the slide valve being connected to and controlled by an auxiliary piston 12. In the position shown in Fig. 1, the piston 12 is raised to its upper position by a spring 13, and both clutches 3, 4 are disengaged, the cylinder 6 of the dog clutch being connected to the atmosphere at 16 by the valve 8. If pressure fluid is admitted through the pipe line 9, it passes through a conduit 18 to the cylinder 1, forces down the piston 5 and engages the friction clutch 3. When this clutch is fully engaged, its lever 22 engages a stop 23 on the piston rod 11 as shown in Fig. 4 and moves the piston 12 and slide valve 8 downwardly to their mid positions, thus connecting the fluid-pressure supply to cylinder 6 so that the dogs of clutch 4 are moved towards the engaging position. Fluid is admitted by the valve 8 simultaneously to the clutch cylinder 6 and behind the piston 12, but the spring 13 of piston 12 is stronger than the spring 25 of cylinder 6 so that piston 12 lags behind piston 24, and the teeth of the dog clutch are pressed towards engagement before the piston 12 and slide valve move to their lowest position in which the cylinder 1 is connected directly to the atmosphere via the conduits 18 and 16. A restriction 20 is provided in the conduit 18 so that the friction clutch disengages gradually ; if it has engaged in such a position that the dogs of clutch 4 cannot engage, as shown in Fig. 4, the gradual disengagement allows the friction clutch surfaces to slip until the dogs can engage under the pressure of piston 24. As the piston 24 moves upwards to its highest position it uncovers a port 17 leading to starting devices (not described) for the booster engine. All the fluid conduits are preferably formed in the body of the clutch cylinder 1, leaving only one external pipe such as 15 leading to the clutch cylinder 6.